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Transient Aerodynamics for Railway System Optimisation

Objective



BE95-1240 Transient Aerodynamics for Railway System Optimisation
Railway companies operating trains at very high speed meet difficult problems due to transient aerodynamics: effects of side-wind gusts on high-speed trains, forces generated during trains passing, pressure wave generation in tunnels, may hinder a smooth exploitation and generate high costs of civil engineering.

These questions involve the whole system: high-speed rolling stock, infrastructure and operating conditions. Solving these problems at European level would ensure an efficient interoperability of the future high-speed network, and allow significant reduction of civil engineering cost, especially regarding tunnel cross-sections.

Objectives of this project are the following:
- develop and validate common scientific databases and methods to study these phenomena and to design optimised solutions;
- prepare guidelines for interoperability based on these data and methods; - design and validate some solutions of wind barriers and tunnel design.
The project will rely both on experimental techniques and numerical simulation as tools for system optimisation. Full-scale tests will be realised in order to obtain reference data, but work will focus mainly on reduced scale experiments and CFD ( computational fluid dynamics ), which are more powerful and flexible.

The consortium will include following partners:

- three railways companies: DB A.G., FS S.p.A, SNCF, end-users of the results, but also experts of these aerodynamic problems, will carry out a large part of experimental and CFD work, as well as the final synthesis.
- a number of research centres ( DLR, Universities of Nottingham, Dundee, L.C.D. (C.N.R.S.), I.S.W., LSTM Erlangen, EPFL ) will be associated partners, according to their specific skill and resources, in order to test concurrent or complementary methods and tools, understand and determine the limits of these different approaches and contribute to build an harmonised methodology.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Deutsche Bahn AG
Address
19,Arnulfstrasse
80335 München
Germany

Participants (11)

British Rail Research
United Kingdom
Address
London Road
DE2 8YB Derby
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
France
Address
Avenue Clement Ader 1
86961 Chasseneuil Du Poitou
Europe Research Management SA
France
Address
22,Rue G. Eiffel
78306 Poissy
Ferrovie dello Stato SpA
Italy
Address
Viale S. Lavagnini 58
50129 Firenze
GERMAN AEROSPACE CENTRE
Germany
Address
Lilienthalplatz 7
38108 Braunschweig
SWISS FEDERAL INSTITUTE OF TECHNOLOGY LAUSANNE
Switzerland
Address
33,
1015 Lausanne
Société Nationale des Chemins de Fer Français
France
Address
45,Rue De Londres
75379 Paris
Technische Universität Wien
Austria
Address
7/322,Wiedner Hauptstrasse
1040 Wien
UNIVERSITY OF DUNDEE
United Kingdom
Address
Nethergate
DD1 4HN Dundee
UNIVERSITY OF ERLANGEN-NUREMBERG
Germany
Address
Cauerstrasse 4
91058 Erlangen
UNIVERSITY OF NOTTINGHAM
United Kingdom
Address
University Park
NG7 2RD Nottingham